Telemeter for the use of photographers.



No. 834,955. PATEMLD APR. 14, '1908,

v F. W. RIGHBS. TELEMBTER PoR THBUSB 0F PHOTOGRAPHERS.

l V '6 SHEETS-'SHEET 1.

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l x y mig if t@ wm #s Wi 'tmeao 31a/north? www No. 884,955, PATENTBD Am. 14, 1908. Y

E. W. RIGHES. TELBMBTER PGR THE USE PHUTGRAPHBRS.

APFLGTION FILED JUNE 9,1906.

6 SHEETS-SHEET 2.

PATENfED APR. 14, laf

E, W. moms. i EELBMEEEE PQR m5 USE 0F PHOTOGRAPHERS;

AEEMGATIQN FILED JUNE 9,1906.

6 SHEETS-SHEET 3.

(U11/voluto@ @Honncid PATBNTEDAPR. 14, 19703.

' in.v 884,955. Y

, F. W. RIGHES. TELEMETER FOR THE USE 0F PHOTOGRAPHERS.

APPLICATION FLED JUNE 9,1906.

'S1/Wanted I @Mot/nud! APR.V14, 190s.

F. W. MGHES-- L TELEMBTER PoR-THE USB 0F PHOTOGRAPHERS.

APPLICATION FILED JUNE 9,1906.

' a sums-.SHEET s.

- WLM/Lewes m2; Z

PATBNTBDAPR.14, 1908.

F. W. RICH?.

TEIBMETBR POR THE USE 0F PHOTOGRAPHE".

APPLIGATIONHLBD mm: 9.1906.

e Samira-SHEET 6.

FRANK ii-'iLLiiiiinieii'iis oif` si.' PETERSBURG, iii'ssi'A;

'TE'IQEME'TR FOR 'rire USE 0Fy P'OjTOGRAPHERs E bldg-84,9155, 'Specification of LtteTs'Patent. 5 '.'atnted prillll, 150.8.

- Appiiatiori fiied Jung 9, i906. seiai'iia 321,017.) t

fTo all ywhom 'it mai/ concdm-.-

. aiii, and a resident lt St. Petersburg, Russia',

(myv poseotlee address being 1l Toutsehkoil v RICHES; a subject of the King of Great Brit- Peieoulol have' invented a Telemeter lfor the Use of Photographers; aiidl do :hereby iol declare the folloiviri-fr to' ybe a full, 'elearjand exactadescription o the invention, such as which forni part.of-thiss-pecie'ation.

' This 'inventioi'i relate's'to'aiteleineter for the use of photographers to enable 'them to ascertaintliejdistaneef at which an object ma;T belfsitua'ted"-ffroiiitlie'- bbserver lands be -d'esififeclA to photograpli', so

r"showing method of use-jef this formi Acase for the exposurel made.'V i

Combinedwith erin: a iXedrelativepoton to"tl ie center of suspension' oi` a plumb' Weight.' Y-b'e'ri the sighting tube is'li'orizontal thefplui'iilrWeight hangs at right angles 4- i A'Spindle or plumb Weight and -se'oto'rm The sighting tube is directed to thebaseo'1 `gr ound 'liiieffof'v the object' to bephotograplied, yand as lthe ,perfectly Vertical',

forinedfbetvsfeen':theline of sight-and a perbonner-ted into ai eircfular 'motion which is"- peiidieular'linedrawn from the eye' of the 0bser -er to the ground. This 'angler 'by .nieanfsof suitable gearing is multiplied,l and.

Qoni'eyedto the dial..liand. The dial how- ,1;everinstead ol. being marked in degrees, for Y 'the sake ot convenience ,is marked 'off to' istanees in feet or metersjso that' fthe distances can be read off with the greate instrument als@ :serves asia -level and can be used to' level :the camera as when] the wirilialu liaiidggispointing to', the, arrow head I ylwliielif 1 is marked.

on Vtli'e 4dial,4 the sighting e tele-meteris at right 'angles tothe tu-be of. .li

server is placed, the necessary allowance @inist be madefor this difference of level by leiiiter 'the camera can libe" Immediately iiied 'a-tthevoorreet foeusand:

'plumb weight vWill hang.

y'ive-igli't and isconsequently in a lperdl'e Z which Works freely in t :Figure is .az'l ront `View-:of teleniet'er'vfor fixing to the camera. -view'thioughftlie .line AB, oliFigl; Fig. 3 is a seetion ftlirougliltlie line U D ofFig. '2

Fig; 2- is a sectional PATENT and showsfineelianisnifrom tliebaek'. Fig.r tis thesiglitiiig tube.-A Fig. 5 lshows.teleni- 'eter .and-- sighting tube'- i'itted to handcaniera and method of using saiiie. Fig; 6 .is a front viewoa modified'forni; 'Fig- 7 is a' side -fview of the; same. Fig'. `Slis a`=rearvieiy of' the sainevwith @over removed. =Fig, y-9 "is a seet'io'non-line'E For- Figi 8i --Figa il() is a rie-W iRefe-rring to Figsif'll'to a. iiie chaii-is'nib. ring frame-for glass,"` v dial plate--dentablature plate-e^2i plumb f. bacl'bearng pflate'for spinr'lle's'l" and ig stop' spring for plumb Weightlif. push iii-forv sprii'ig-li; 'linien and y'spindle for ial" liandj dial ander ointere-r. coverf glass fordiall.

'telemeter vto carriera. 1 The plumb weight e 'issiis -ended by spinliecbeariiig holes v'inthe entablatur'e plate'daiidbak bear-ing platef, therefore Whateveriiaybetlie vertial edge: positiofi-r'ot-thev telemetenf this plumbv \'veigl it W ill, hii predeterinined iiiiits', always-liaiigvert @iilv a, eert-ain necessary and itis tliehfstoppe'd striking l ed into circular niet measured, a spring g is provided which is ieee-SSM; @X- treine positien's of plu'iiibiveight are 'shown in dotted lines on Fig.' Y. has a'toothedseetor gearing inl/ofthe pinion e pliimb Weight e,

v tact with the plumb weight 65 dia fastened to the back bearing plate f oy means of two screws n. n. On the end of this spring isvthe -push pin 7? which extends up through an aperture in and slightly above 5 the front flanJe of the easing. When in normal position this spring g presses upon the plumb weight e and roes not allow it to move, but on pressing down the push pin L the spring y is also pressed down from cone" which is then freeto swing in either direction. On removing the pressure from push pin h the spring y again presses against the plumb weight e and holds it in the position in which it was at the moment of releasing the pressure on the V push pin h. l

Fig. 4 is the sighting tube which consists of a tube having the metal of one end set over with a hole o f about 1 millimeter diameter drilled in it. Into the other end ofthe tube is inserted an eye-piece with a conical or taper Ahole in it which ,at the inner end is only about 1 millimeter in diameter. This tube is shown with a small rib along the, outside, this rib is drilled with holes for the screws necessary for fixing it to lthe camera. There the bodyof the camera is sufficiently thick, this rib is not necessary as a hole can be drilled through the body of the camera 'and the tube tightly inserted. This tube can be cutto any length to suit any size of camera.

The method of lixing and using this telem eter is as follows: The sighting tube Fig. 4 is'iixed in a horizontal position on any convenient part of the camera Fig. 5 and the telemeter is also fixed on any "convenientpart 0f the camera on any vertical plane parallell with the sighting tube and in'such a manner that when camera and sighting tube are horizontal, the dial hand of telemeter stands vertical and points to the arrow head p, marked on `the dial` v The camera is held in both hands in such a manner that' the forefinger of one hand presses on the applied to the sighting tube which' is then 'directed to the base or ground line of the ob ject to be photographed, Fig. 5. As soon as the lower edge of the object shows in the center ofthe aperture of the sighting.-tube, the push in is released by the foreiinger and the lurnbweight and consequently the dia] han are 'held in this position, and th' dial dicate the correct distance o the object from the observer in feet. f j y Referring to Figs. 6 to 10, e. body of casei). back cover-"of case-c. ring frame for glass-cover glass for dial-e dial platebrake. drum with toothed sectory. spin le of brake drum-fh. bracket for bearing for -brake drum spindle-IL adjustable dial hand or v)ointer---jrboss with adjusting screw for lhand---Zn- 'pinion and spindle .for dial tor j' and the pinion and spindle his multi push-pin h', the eye is thenv `hand by its position on the dial late will inhand---l.A bracket and bearingiforspindle for dial hand-m. cntablature plate-'n spring for brake-o, sighting tube- 25. plumb Welght-q. aperture in end of sighting tube- I sere-WS fOr fastening brake sprin to entablature )late-- 1,5 s. screws for fastening bracket h to e'ntablature plate-t. screws .for fastening bracket. Z to ente blature plate-eu. ring for fastening to wats-h chain-uupush pin for releasing brakewf. brake-- eye piece for sighting tube.

The plumb weight p is fastened to the brake drum f which is suspended by a spindle g which works freely in the bearingholes in they entablature plate m and back bearing plate, or bracket h, and therefore whatever may be the upright position ofthe telem'eter, within certain predetermined limits, 4this plumb weight will always hang vertical. Only a. certain amount of angulartravel of plumb Weight is necessary when it is stopped y striking against the case. The two neces- 'sary extreme ositions of lumb Wei hts are P P g shown by dotted lines in Fig. 8.

The brake drum to which the plumb weight isfixed has a toothed sector gearing into the inion on'the s indle Zr which has a dial han aifixed toit, t erefore the amount of angular movement of the plumb weight y, by means of the brake'drum and toothed seeplied arid converted into the circular motion which is conveyed to the dial hand fi. y

A brake or "stop w is kept continually pressed against the drum f bymeans of the .spring n. The ush pinuis for pressingdown 100 against the ,bra e and releasing its pressure on the drum j' so lthat the plumb weight will be free to swing and assume a vertical posi tion.

The sightingtube o extends right through the case andA at one end is closedover and has a small hole about 1ll millimeter diameter drilled through it, the other end of the vtube 'has an eye piece .zu and a ring u for fastening telemeter to watch chain.

The method of using -the Vpocket form of telemeter is shown in Fig. 10. The inst-ru- .ment is held between the four fingers and thumb of one hand with the thumb pressing 4on the push pin fu, care-being taken that -,the 11.5

fingers donot .interfere with` the direct land clear View` through the aperture Q ofthe sighting tube. The ring u is then swung aside and theeye is then applied to 'theg'eye piece and the sighting tube isdirectd to the base or ground line of the object to be photographed, and as soon as t-he lower edge of the object shows in the center of the aperture of the sighting tube, the )ressure on the push pin is released by the tlliunlb and eonsequently the plumb weight and dial hand are held in the 'position assumed and will indieateon. the dial the dist-ance required.

As the angle formed between the line of sight and a perpendicular drawn from th'eH1-3o l will also iii the saine manner 'vary 'n its position o'n'the dial, therefore di'al F ig.' -6 has beenv designe-d, 'On this dial the eireu'lar lines rep' resent the' height of observers eye 'above the vground in feet and inehes,these heights' '10 on this' articular dial are frein' 4 "feet advaneing y inches up tofeet 6 inches, but can be graduated in any other' manner that may be required. The Curved lines represent the distance of object from. observers. ,5, eye. The points at which the curved lines intersect the eireular lines give the distance of object-from observer at the respective height of eye. l A

ln Fig. the dial hand is' adjustable in the 2o socket orboss, so'that it is only necessary to measure the height of observerfs eye from the ground and set' the dial hand out 'freni' y the center and fasten it withthe set screw so that the ointbf' the dial hand Vrevolves on the eireu ar line on dial which represents the height of observer s eye from ground'. Where the curved lines intersect' this circular line Will bev the veorreet distances of the objeetfor.

this particular observer. I l Y.

If required an ordinary simple handand dial can be fitted speeiallylgraduated and solely forthe particular height of observer .as Shown in Fig. 1. y

Either style Iof dial 'and hand'ean' be -iitt'edto either style of'telerneter.

lt will thus be seen that rny invention I emplo'y^a sighting tube; a circular easing; a pendulous Weight inelosed by the saine, eurved to eonferin to the intev4o "rior Wall of said easing,- and having rack teeth rigid "therewith This vpenduious Weight7 i'n each forino my invent-ion, aise,

has a ortion ofits body .o iisetlo'r extending ina p ane to oneside of the plane including 4'5 the rack teeth, in order that more metal mayv be in eluded'-therein7 and 'at the saine time 'terfered with. -This Weight has its pivots in the 'entablature plate, and in a bach plate or 5e bracket vin'eaehforrn of m'v invention; and,

both forms 'ofrny device, a so, einploy'a ref-- silient brake n'ornially in oon'taet with saidv wveight,fand a push pin 4for controlling the brake. y

in bouifomi's of Having thus. d'esei'ibed rn'y 'inventionl Wh atother portions of the deviee inay not be in- 1. Ina tf'elern'eten'l the combination of aasighting tube ya pendulous Weight curved' to'conforrn tothe interior of said casing, and

having an offset body port-ion; raek teethv rigid Withsaid Weight; a baekplate'; a -s indle pivoted'in said entablature'plate an( in saidback plate, 'on which said pendulum 'and efraekteeth are mounted; a'pointer; a pinion.v

'trolling saidv brake','. stantiallyja 4eireular easing, having an. entablature plate;

vine'losing casing; 'a 'sighting tube; adial'; a

gage; a suitable dial over whiohsaiidfpointer' plavspa resille-rit brakenorrnally in contact with said weightyand a; ushpieeeor-.qon-I.

dei sijfribe'd. V

. 2. ln la 'teleineterj 41y ;.i r t the ,Cambrian nef/fm inelesing easing, a dia'h,` a, pointer, shaft o n which'. said pointer'. is ri'i'unted' a fp n'ion `en -s'aid shaft,' 'and" .a' plu'i'nb' 'Weightl i mounted in sai'i easing fand; having-fits', inte'- 'rior- .'eut away' andpro'v'iiled v'vith "teeth en'- gaging said pinion, scribed,

3. In a telemeter, the eornbii'iatio'n'.l ,of 'an inelesing easing, a dial earriedthereby, ya

vsubstantiall-y las de;-

pointer, a shaftv on which said'pointer is mounted, a pinion .on saidshaft, apluinb Weight pivoted in said casing and having its interior 'out away 'and rovid'ed with teeth arranged. ina curve anc. engaging' said pinion, vresilir'ant means 'for preventing the Inovenient of saidvweight, and a push .button extending 'through said easing, whereby the user, ina'y-disengage' said nieans ironi said Weight, substantially as described.v

4. ln a telenieter, the combination of an inelosin'g easing., adial, apointer, a shaft' earrying said ointerJ av pinionon said shai't, a plumb Weightpivotally n iounted in said easing and having its interior eut. away, said `wei ht surroundinff. saidg' i-iion and ro'- vided Withteethf arranged :ina e'u-rve, said 'teeth engaging said pinion, 'a-spring engaging said weight, 'and a 'pushbutton conneetei'l to ioo.

said'spring and extending outwards'through .said easing,'substantially as described;l

-5. In Aa -telenieter, the combination of an inelo'sing casing; a sight-iiigA tube 3 a dial; a

pointer; 4a shaft on ivhioh said pointer is .mounted; a pinion. ons'aidshaft and a pluinb VWeight pivotally mounted in said. easing and having its interior eut away andprovided with teeth engaging said-pinion, substantially as 'desorbed. f v

plumb Weight pivoted insa-id casing and h'ziv'. ing its interior eut awayv and. provided with teeth arranged in 'a curve and engagii'igsaid pinion; resilient nie-ans`v for-'f reventing fthe niovereent'of said Weight; amV a push button extending through 'sa-id 'easing, whereby the.

user may disengage said -nieans fronr'said weight, substantiallyV as .describa-ul.

i In: a teleineter.; the' combination f of an j A 110' 6. In ateleineter, fthe onil'iination of an 4inelo'sing casing; a sighting tube.; a4 dial. ear'- iis ointer; a sliaitfcarrying said pointer; a p'in- 125' io'n v onslaid shaft; a. pluinh Weight pivotally Amounted in'said casing and havingits' inte a Curve, said teeth engaging said pini'on; a' 130' spring engaging said weight and a push bnting ont through said casing to be operated by ton connected to said springV and extending the user to release said'plnmb from said 15 outwards through said casing, substantially, means; and a dial specially graduated for inas described. Y dioating to persons their lineal distance from 5 :In fr t'eleme'ter, the combination of a an object, substntiallyas described.

ghtlno' tube, with a case; a pointer; a In testimony whereof I have signed my H Atoothec gearing: a nlnl'nb Weight piyotally naine to this specification in the presence of 20 supportedl in said casing, fndlserfn *n ne; two subsvribing witnesses. tim-te sai( ioint'er tirou'i t 1e mefium r H y .T f.- ,7T l g y 10 said toothed gearing; a, hiiake normally held L "AA hf l ILIAM h1( HEb' in Contact with said plumb weight and adapt- VVitnesse-s: y ed for arrest-ing said plum.) weight at any L. A. LOVIAGUIRE, point in its movement; n4 push piece extend i ,EDWARD WANSOIIEIDT. 

